CN109825366A - Winterization grease removal equipment and winterization grease removal method - Google Patents
Winterization grease removal equipment and winterization grease removal method Download PDFInfo
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- CN109825366A CN109825366A CN201910181354.3A CN201910181354A CN109825366A CN 109825366 A CN109825366 A CN 109825366A CN 201910181354 A CN201910181354 A CN 201910181354A CN 109825366 A CN109825366 A CN 109825366A
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- tank body
- grease
- conveyer belt
- winterization
- grease removal
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Abstract
The present invention provides a kind of winterization grease removal equipment and winterization grease removal method, belongs to purifying plant technical field.Wherein winterization grease removal equipment includes the tank body for holding grease, the tank body is vertically arranged, cooling piece for cooling down grease in the tank body is installed outside the tank body, conveyer belt is installed in the tank body, the end of the conveyer belt is located at outside the tank body, and the conveyer belt is in the tank body in double-helix setting and iterative motion.Winterization grease removal equipment provided by the invention, the intracorporal grease of tank crystallizes under the cooling of cooling piece, wherein saturated fatty acid is precipitated in solid-state, tristearin is formed, grease, that is, palmitin rich in unsaturated fatty acid is in the liquid with mobility, with the spiral escalation of conveyer belt, tristearin is transferred to outside tank body by conveyer belt, and palmitin is flowed back to from conveyer belt in tank body, as the iterative motion of conveyer belt is gradually reduced the saturated fatty acid content of grease in tank body, improves the clarity of grease at low temperature.
Description
Technical field
The present embodiments relate to purifying plant technical field more particularly to a kind of winterization grease removal equipment and winterization grease removal sides
Method.
Background technique
Grease is the mixture of saturated fatty acid and unsaturated fatty acid, under cryogenic, the saturated fat in grease
Acid is precipitated in flocky precipitate, influences appearance and use.Therefore, it to appearance and using the occasion for having specific demand, needs more
The winterization process for increasing removal saturated fatty acid is cooled down by stirring, and the saturated fatty acid in grease is made to generate larger crystallization, point
It isolates and filters out.
There are two types of traditional winterization techniques: the first technique is grease to cool down crystallization and filtration removal, the technique is precipitated
The filter cake in discharging removal filter is needed during the filtration process, is taken a long time, and is easy in addition, going back filter cloth during the filtration process
Existing breakage, influences filter effect, does not reach requirement filtrate；Second of technique uses low temperature sedimentation, needs to add part molten
Agent increases the effect of settling of grease at low temperature into grease, and supernatant precipitation, deodorization is then sucked out, and the process requirement is natural
Sedimentation, it is time-consuming also very long, and solvent can dissolve fractional saturation fatty acid, the saturated fatty acid removal effect of final finished oil compared with
Difference.
Summary of the invention
(1) technical problems to be solved
An object of the present invention is to provide a kind of winterization grease removal equipment, to solve existing winterization equipment degreasing effect
The problem of difference.
The second object of the present invention is to provide a kind of winterization grease removal method, to improve grease removal efficiency, it is conducive to scale metaplasia
It produces.
(2) technical solution
One of in order to solve the above-mentioned technical problem, the present invention provides a kind of winterization grease removal equipment, including for holding grease
Tank body, the tank body is vertically arranged, the cooling piece for cooling down grease in the tank body is installed outside the tank body,
Conveyer belt is installed, the end of the conveyer belt is located at outside the tank body, and the conveyer belt is in the tank body in the tank body
In double-helix setting and iterative motion.
Wherein, the cooling piece includes collet, and the collet is set in outside the tank body, the collet and the tank body it
Between gap for circulating cooling medium.
Wherein, the cooling piece includes outer coil pipe, and external disk pipe dish described in multi-turn is wound on outside the tank body, in the outer coil pipe
Circulate cooling medium.
It wherein, further include stirring rod, the stirring rod is mounted in the middle part of the tank body, is equipped with and is stirred in the top of the tank
Driving element is mixed, the output end of the stirring driving element is connected with the stirring rod.
Wherein, it is equipped with discharge port at the top of the tank body, the end of the conveyer belt is stretched out from the discharge port, in institute
The end for stating conveyer belt is equipped with scraper, the blade of the scraper towards the conveyer belt transmission plane to strike off tristearin.
Wherein, friction band is additionally provided on the conveyer belt, the friction band is a plurality of along the conveyor width direction
What is extended is convex stupefied.
Wherein, the angle between the work surface and horizontal plane of the intracorporal conveyer belt of the tank is 30 °~60 °.
In order to solve the above-mentioned technical problem two, the present invention provides a kind of winterization grease removal method, includes the following steps:
Step S1, grease to be processed is injected into tank body, and cooling piece cools down to the intracorporal grease of the tank；
Step S2, saturated fat acid crystal are precipitated to form tristearin, the conveyer belt spiral escalation and decline of double-helix, will
Tristearin is delivered to outside the tank body and the liquid fat rich in unsaturated fatty acid is made to flow back to the tank body from the conveyer belt
It is interior.
Wherein, in step S2, grease to be processed keeps the temperature 6h~36h under -20 DEG C~0 DEG C of environment temperature, so that oily
Saturated fat acid crystal in rouge is precipitated；Start the conveyer belt, the transmission speed that the conveyer belt is arranged is 1m/s~5m/s.
It wherein, upon step s 2 further include step S3, the conveyer belt is delivered to outside the tank body by the scraper
Tristearin strikes off.
(3) beneficial effect
Winterization grease removal equipment provided by the invention, for holding grease, grease crystallizes tank body under the cooling of cooling piece,
Middle saturated fatty acid is precipitated in solid-state, and forming the solid crystals rich in saturated fatty acid is tristearin, rich in unsaturated fatty acid
Grease, that is, palmitin is in the liquid with mobility, and with the spiral escalation of conveyer belt, tristearin is transferred to outside tank body by conveyer belt,
And palmitin is flowed back to from conveyer belt in tank body, as the iterative motion of conveyer belt is gradually reduced the saturated fat of grease in tank body
Fat acid content improves the clarity of grease at low temperature；
Winterization grease removal method provided by the invention carries out grease removal by above-mentioned winterization grease removal equipment, oil can be effectively reduced
The content of saturated fatty acid in rouge improves the clarity under oil at low temperature.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of winterization of embodiment of the present invention grease removal equipment；
In figure: 10, tank body；20, cooling piece；30, conveyer belt；40, stirring rod.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Following instance
For illustrating the present invention, but it is not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Winterization grease removal equipment in the embodiment of the present invention, as shown in Figure 1 comprising for holding the tank body 10 of grease,
Cooling piece 20 for cooling down grease in tank body 10 is installed outside tank body 10, conveyer belt 30 is installed in tank body 10, wherein passing
The end of band 30 is sent to be located at outside tank body 10, part of the conveyer belt 30 in tank body 10 is in double-helix, can be followed in tank body 10
Ring reciprocally moves.
Winterization grease removal equipment in the embodiment of the present invention, the grease in tank body 10 crystallize under the cooling of cooling piece 20,
Middle saturated fatty acid is precipitated in solid-state, forms the solid crystals (i.e. stearic) rich in saturated fatty acid, and is rich in unsaturated fat
The grease (i.e. palmitin) of acid is still in the liquid with mobility, and with the spiral escalation of conveyer belt 30, tristearin is by conveyer belt
40 are transferred to outside tank body 10, and palmitin is flowed back to from conveyer belt 30 in tank body 10, with conveyer belt 30 iterative motion by
The saturated fatty acid content of grease in decrescence small tank body 10 improves the clarity of grease at low temperature.
Specifically, cooling piece 20 includes the collet being set in outside tank body 10, the gap between 10 outer wall of the collet and tank body
For cooling mediums such as the ethylene glycol that circulates, freon, to play the role of cooling.Preferably, collet is in honeycomb, can
Effectively to increase film-cooled heat, cooling effect is improved.In addition to this, which can also include be coiled in that tank body 10 is outer
Coil pipe, outer coil pipe multi-turn are wound around outside tank body 10, and it is cooling that ethylene glycol, freon for cooling down grease etc. is connected in outer coil pipe
Medium.It should be noted that the cooling piece 20 can be only collet, outer coil pipe may also be only；It is of course also possible to be arranged simultaneously
Collet and outer coil pipe, when being arranged when having collet and outer coil pipe simultaneously, external disk pipe dish is wound on outside collet.
In addition, stirring rod 40 is also equipped in tank body 10 in order to make the grease uniform decrease in temperature in tank body 10, the stirring rod
40 top is connected with the output end of stirring driving element, which can be to be mounted on the rotation at 10 top of tank body
Motor or other driving equipments.Under the action of stirring driving element, stirring rod 40 is sufficiently mixed grease, makes the oil in tank body 10
Rouge is cooled uniformly, realizes homogeneously crystallized.Wherein, conveyer belt 30 is in double-helix, is arranged close to 10 inner wall of tank body, stirring rod 40
It is formed by the middle part of ring structure, is effectively facilitated close to the grease of 10 inner wall of tank body and close to tank in the transmission belt 30 in tank body 10
The exchange of the grease at 10 middle part of body.It should be noted that stirring rod 40 can be shaft, or plate object, to this
Inventive embodiments are not specifically limited.
It is equipped with discharge port at the top of tank body 10, the end of conveyer belt 30 stretches in tank body 10 outside discharge port, for convenience
Tristearin falls off from conveyer belt 30, installs scraper at this, the blade of the scraper towards conveyer belt 30 working face to strike off position
Tristearin on conveyer belt 30.In addition, being additionally provided with transfer roller at this, conveyer belt 30 is set on transfer roller, and transport side occurs
To variation, be recycled in tank body 10 again from the discharge port.
To improve the frictional force on conveyer belt 30, it is additionally provided with friction band on the surface of conveyer belt 30, which is a plurality of
Along the convex stupefied of 30 width direction of conveyer belt setting, it is a plurality of it is convex it is stupefied be parallel to each other, increase 30 surface of conveyer belt and solid-state saturated fat
Frictional force between acid crystal is rich in unsaturated fatty acid so that solid saturated fatty acid be made to be more easier to be removed at this time
Liquid fat in transmit process frictional force it is still smaller, in natural back flow to tank body 10.Certainly, friction band may be
Multiple anti-skid bulges being arranged on 30 working face of conveyer belt, as long as can play the role of increasing friction, in this regard, this hair
Bright embodiment is not specifically limited.
Specifically, in embodiments of the present invention, the angle between conveyer belt 30 and horizontal plane is 30 °~60 °, conveyer belt 30
Transmission speed be 1m/s~5m/s.It is arranged by inclined 30 spiral escalation of conveyer belt and reasonable transmission speed, it can be with
Solid-state saturated fat acid crystal is removed out of tank body 10 effectively, improves the clarity of grease.Preferably, conveyer belt 30 and water
Angle between plane is 45 °, and the transmission speed of conveyer belt 30 is 2m/s.
When carrying out winterization grease removal using the winterization grease removal equipment, specifically comprise the following steps:
Step S1, grease to be processed is injected into tank body 10, and cooling piece carries out decrease temperature crystalline to the grease in tank body 10；
In order to realize temperature with high efficiency, it is provided with two sets of cooling systems of collet and inner coil pipe outside tank body 10, is with ethylene glycol solution
Cooling medium cools down grease；Stirring rod in tank body 10 drives stirring under the driving of stirring driving element
Grease helps to realize uniform decrease in temperature；
Step S2, after cooling, saturated fat acid crystal is precipitated to form tristearin, 30 spiral escalation of conveyer belt and decline, from
And it is back to the liquid fat rich in unsaturated fatty acid in tank body 10 from conveyer belt 30, and tristearin is delivered to from tank body 10
Outside tank body 10；By continual iterative motion, the saturated fatty acid content being gradually reduced in grease provides the clear of grease
Clear degree.
Step S3, scraper strike off the tristearin that conveyer belt 30 is delivered to outside tank body 10.
Specifically, grease keeps the temperature 6h~36h under 20 DEG C~0 DEG C of environment temperature, and preferred soaking time is for 24 hours, to make
Saturated fatty acid sufficient crystallising in grease is precipitated；The transmission speed of conveyer belt 30 is 1m/s~5m/s, preferably 2m/s；Transmission
Gradient with 30 is 45 °.
Below with for the higher DHA grease of palmitinic acid (i.e. C16:0, one of saturated fatty acid) content to the above-mentioned winter
Rouge method is eliminated to be introduced.
The volume of tank body 10 is 2m3, palmitinic acid 1.6t is launched into tank body 10, stirring driving element drives stirring rod stirring
Make palmitinic acid slow cooling to -10 DEG C, heat preservation starts conveyer belt 30 afterwards for 24 hours, and for control transmission speed in 2m/s, circulation removal is hard
Rouge completes the stearic operation of circulation removal after 3h, and the palmitin oil sample in tank body 10 is taken to measure fatty acid composition, and with raw material, with
And stearic fatty acid composition is compared, the results are shown in Table 1:
Oil component test analysis table after the processing of 1 winterization of table in tank body 10
| Title | C16:0 | C18:1 | C18:2 | C22:5 | C22:6 |
| Raw material | 16.25% | 1.93% | 1.27% | 17.72% | 45.37% |
| Palmitin | 10.70% | 2.09% | 1.71% | 20.19% | 47.27% |
| It is stearic | 35.48% | 1.29% | 1.22% | 13.54% | 31.45% |
Seen from table 1, after winterization processing equipment removes saturated fatty acid, saturated fatty acid content is (with C16:0 in palmitin
For) be substantially reduced compared with raw material, the saturated fatty acid content in tristearin is obviously improved, and removal effect is obvious.Separately take crystallization
Palmitin oil sample carries out refrigeration test in tank, haze-free through 5.5h at 0 DEG C, meets grease freezing experiment requirement.
After removing saturated fatty acid, output palmitin 1.2t in crystallizing tank, for recovery up to 75%, the tristearin of removal can use other
The production of kind quasi-grease, or accelerate the crystallization of saturated fatty acid to be precipitated as nucleus in next group production, it will not waste.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of winterization grease removal equipment, which is characterized in that including the tank body for holding grease, the tank body is vertically arranged, institute
The cooling piece being equipped with outside tank body for cooling down grease in the tank body is stated, conveyer belt, the biography are installed in the tank body
The end of band is sent to be located at outside the tank body, the conveyer belt is in the tank body in double-helix setting and iterative motion.
2. winterization grease removal equipment according to claim 1, which is characterized in that the cooling piece includes collet, the collet
It is set in outside the tank body, the gap between the collet and the tank body is for the cooling medium that circulates.
3. winterization grease removal equipment according to claim 1 or 2, which is characterized in that the cooling piece includes outer coil pipe, multi-turn
The external disk pipe dish is wound on outside the tank body, and circulate cooling medium in the outer coil pipe.
4. winterization grease removal equipment according to claim 1, which is characterized in that it further include stirring rod, the stirring rod installation
In the middle part of the tank body, stirring driving element, the output end of the stirring driving element and institute are installed in the top of the tank
Stirring rod is stated to be connected.
5. winterization grease removal equipment according to claim 1, which is characterized in that it is equipped with discharge port at the top of the tank body,
The end of the conveyer belt is stretched out from the discharge port, is equipped with scraper, the blade of the scraper in the end of the conveyer belt
Towards the conveyer belt transmission plane to strike off tristearin.
6. winterization grease removal equipment according to claim 1, which is characterized in that friction band is additionally provided on the conveyer belt,
The friction band is a plurality of along the convex stupefied of conveyor width direction extension.
7. winterization grease removal equipment according to claim 1, which is characterized in that positioned at the intracorporal conveyer belt of the tank
Angle between work surface and horizontal plane is 30 °~60 °.
8. a kind of method for carrying out winterization grease removal using the described in any item winterization grease removal equipment of claim 1-7, feature exist
In including the following steps:
Step S1, grease to be processed is injected into tank body, and cooling piece cools down to the intracorporal grease of the tank；
Step S2, saturated fat acid crystal are precipitated to form tristearin, the conveyer belt spiral escalation and decline of double-helix, will be stearic
It is delivered to outside the tank body and flows back to the liquid fat rich in unsaturated fatty acid from the conveyer belt in the tank body.
9. winterization grease removal method according to claim 1, which is characterized in that in step S2, grease to be processed is at -20 DEG C
6h~36h is kept the temperature under~0 DEG C of environment temperature, so that the saturated fat acid crystal in grease is precipitated；Start the conveyer belt, if
The transmission speed for setting the conveyer belt is 1m/s~5m/s.
10. winterization grease removal method according to claim 1, which is characterized in that upon step s 2 further include step S3, institute
Scraper is stated to strike off the tristearin that the conveyer belt is delivered to outside the tank body.
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| CN201910181354.3A CN109825366B (en) | 2019-03-11 | 2019-03-11 | Winterization fat removal equipment and winterization fat removal method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910181354.3A CN109825366B (en) | 2019-03-11 | 2019-03-11 | Winterization fat removal equipment and winterization fat removal method |
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| CN109825366B CN109825366B (en) | 2023-02-10 |
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